U.S. patent number 6,292,674 [Application Number 09/135,315] was granted by the patent office on 2001-09-18 for one-handed control for wireless telephone.
This patent grant is currently assigned to Ericsson, Inc.. Invention is credited to Gerald C. Davis.
United States Patent |
6,292,674 |
Davis |
September 18, 2001 |
One-handed control for wireless telephone
Abstract
A control apparatus for a hand-held wireless telephone having a
housing and operating in a first operational state of a plurality
of sequential operational states. The control apparatus changes the
operational state of the wireless telephone from the first
operational state to a second operational state. The control
apparatus itself comprises a detector that produces a signal
responsive to a user grasping the housing of the wireless telephone
and a controller responsive to receiving the signal produced by the
detector and configured to select another operational state
following the first operational state in a predetermined sequence
of operational states.
Inventors: |
Davis; Gerald C. (Hillsborough,
NC) |
Assignee: |
Ericsson, Inc. (Research
Triangle Park, NC)
|
Family
ID: |
22467537 |
Appl.
No.: |
09/135,315 |
Filed: |
August 5, 1998 |
Current U.S.
Class: |
455/550.1 |
Current CPC
Class: |
H04M
1/0281 (20130101); H04M 1/724 (20210101); H04M
2250/12 (20130101) |
Current International
Class: |
H04M
1/02 (20060101); H04M 1/725 (20060101); H04M
1/72 (20060101); H04B 001/38 () |
Field of
Search: |
;455/90,575,569,550
;379/433,430,428 ;236/51 ;89/1.11 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
0346859 |
|
Dec 1989 |
|
EP |
|
2316574 |
|
Feb 1998 |
|
GB |
|
WO 9716932 |
|
May 1997 |
|
WO |
|
Other References
Patent Abstracts of Japan, vol. 1996, No. 09, published Sep. 30,
1996. .
Patent Abstracts of Japan, vol. 011, No. 171, published Jun. 2,
1987..
|
Primary Examiner: Chang; Vivian
Assistant Examiner: Appiah; Charles N.
Attorney, Agent or Firm: Wood, Phillips, VanSanten, Clark
& Mortimer
Claims
What is claimed is:
1. A control apparatus for a hand-held wireless telephone having a
housing with a motion sensor and operating in a first operational
state comprising one of a plurality of sequential operational
states, said control apparatus changing said operational state of
said wireless telephone from said first operational state to a
second operational state, said control apparatus comprising:
a timer;
a detector that produces a signal responsive to moving of said
housing by a user, said detector further generating said signal
when said housing is stationary for a predetermined time after
movement;
an OR gate receiving input from a microphone, a speaker, and the
motion sensor, the detector being connected to said OR gate such
that the detector does not send the signal when there is input from
said microphone, speaker or said motion detector; and
a controller responsive to receiving the signal produced by said
detector and configured to select a next sequential operational
state of said first operational state as the second operational
state.
2. The control apparatus of claim 1 wherein said detector comprises
a light-sensitive element that generates the signal responsive to
the user's hand cutting off light to the element.
3. A control apparatus for a hand-held wireless telephone having a
housing, a microphone and a speaker and operating in an active
state and a second state, comprising:
a detector that produces a first signal responsive to a user
holding the housing of the wireless telephone;
an OR gate receiving input from said detector and at least one of
said microphone and speaker and outputting a second signal when any
signal is input to said OR gate; and
a controller maintaining the telephone in said active state
responsive to receiving said second signal output by said OR gate
and changing from said active state responsive to not receiving
said second signal from said OR gate.
4. The control apparatus of claim 3, wherein said OR gate outputs
no signal when no input is received and said controller responds to
receiving no output from said OR gate by placing said telephone in
said second state.
5. The control apparatus of claim 4, wherein said second state is a
standby state.
6. The control apparatus of claim 3, wherein said OR gate receives
input from both said microphone and said speaker.
7. The control apparatus of claim 3, wherein said detector
comprises a motion sensor, and said detector produces said first
signal responsive to motion of the housing.
8. The control apparatus of claim 7, wherein said detector further
comprises a timer, and said detector produces said first signal for
a selected period of time measured by said timer after said motion
sensor ceases to sense motion of said telephone.
9. The control apparatus of claim 3, wherein said detector
comprises a grasp-sensitive switch.
10. The control apparatus of claim 9 wherein said detector
comprises a thermal sensor embedded in said housing that generates
the signal responsive to a rise in temperature around said
housing.
11. The control apparatus of claim 9 wherein said housing has at
least one flexible side, and wherein said detector comprises a
pressure sensitive switch under said flexible side that generates
said signal when the user squeezes said flexible side and said
flexible side contacts said switch.
12. The control apparatus of claim 9 wherein said housing has first
and second spaced locations, and wherein said detector comprises a
first pressure sensitive switch under the first spaced location and
a second pressure sensitive switch under the second spaced
location, said detector generating said signal when the user
squeezes either of said first and said second spaced locations and
either of said spaced locations switches one of said first and said
second switches.
13. The control apparatus of claim 9 wherein said telephone has
sequential operational states and
and said housing has first and second spaced locations;
said detector comprises a first pressure sensitive switch under the
first spaced location and a second pressure sensitive switch under
the second flexible spaced location, said detector generating a
first signal when the user squeezes the first said spaced location
and the first spaced location switches the first switch, and
generates a second signal when the user squeezes the second spaced
location and the second spaced location switches the second switch;
and
the controller is configured to select a next sequential
operational state responsive to receiving the first signal, and
selects a further sequential operational state responsive to
receiving the second signal.
14. The control apparatus of claim 13 wherein, when said wireless
telephone is operating in a function state, said controller is
configured to change said function state to a standby state
responsive to said grasp-sensitive switch.
15. The control apparatus of claim 14 wherein, when said wireless
telephone is operating in a function state, said controller is
configured to change to a positive state responsive to the first
signal and a negative state responsive to the second signal.
16. The control apparatus of claim 9 wherein said detector
comprises a capacitance sensor enclosed in said housing that
generates the signal responsive to the user's grasp completing a
circuit through said capacitance sensor.
17. The control apparatus of claim 9 wherein, when said wireless
telephone is operating in an alerting state, said controller is
configured to change said alerting state to a send state responsive
to said grasp-sensitive switch.
18. The control apparatus of claim 9 wherein, when said wireless
telephone is operating in a send state, said controller is
configured to change said send state to a standby state responsive
to said grasp-sensitive switch.
19. The control apparatus of claim 9 wherein, when said wireless
telephone is operating in a standby state, said controller is
configured to change said standby state to a redialing state
responsive to said grasp-sensitive switch.
20. The control apparatus of claim 9 wherein, when said wireless
telephone is operating in an alerting state, said controller is
configured to change said operational state to a send state
responsive to said grasp-sensitive switch.
Description
FIELD OF THE INVENTION
This invention relates to the field of wireless telephones, and,
more specifically, to operational controls for wireless
telephones.
BACKGROUND OF THE INVENTION
It is common knowledge that wireless telephones (also called mobile
stations, cellular telephone and cell phones) do not operate in the
same manner as conventional wireline telephones. Most wireline
telephone operations, such as answering the telephone and
disconnecting the telephone, can both be accomplished with one
hand. In contrast, a wireless telephone usually requires two hands
to operate. To answer or disconnect a wireless telephone, the user
must hold the telephone in one hand and push a "send" or "end"
button, respectively. Hunting for a specific button and then
pushing it can be awkward, especially in comparison to wireline
telephones. Answering a wireless call can be dangerous in an
automobile if the driver must take his or her eyes off of the road
to hunt for the "send" button. Some people try to use the thumb of
the hand in which they are holding the wireless telephone to push
buttons. The thumb is not the best pointing device, however, and
many wireless telephones are too big for this maneuver. Further, as
telephones become smaller while simultaneously performing more
functions, the buttons are becoming smaller and harder to read and
touch individually.
This problem is partially addressed by wireless telephones that
have "flips" or panels that rotate out. Some of these flip phones
answer a call when the flip is opened (and some disconnect when the
flip is closed). However, many of the flip phones require two hands
to open, and other functions cannot be accessed by use of the flip.
The user must still use two hands to perform these functions.
Therefore, there is a need in the art for wireless telephones that
can be operated in as simple a manner as a wireline telephone.
SUMMARY OF THE INVENTION
In accordance with one aspect of this invention, a control
apparatus for a hand-held wireless telephone is provided. The
wireless telephone has a housing and operates in a first
operational state comprising one of a plurality of sequential
operational states. The control apparatus changes the operational
state of the wireless telephone from the first operational state to
a second operational state. The control apparatus itself comprises
a grasp detector that produces a signal responsive to a user
grasping the housing of the wireless telephone and a controller
configured to select a next sequential operational state following
the first operational state as the second operational state
responsive to receiving the signal produced by the detector.
In accordance with another aspect of this invention, the detector
comprises a thermal sensor embedded in the wireless telephone's
housing and generates the signal responsive to a rise in
temperature around the housing, and, advantageously, generates the
signal responsive to a decrease in temperature. According to a
further aspect of this invention, the housing has at least one
flexible side, wherein the grasp detector may be a pressure
sensitive switch under the flexible side that generates the signal
when the user squeezes the flexible side.
According to another aspect of this invention, the housing has a
first and a second flexible location, wherein the detector further
comprises a first pressure sensitive switch under the first
flexible location and a second pressure sensitive switch under the
second flexible location. The detector may generate the signal when
the user squeezes either the first or the second location. In
accordance with yet another aspect of this invention, the housing
has a first and a second flexible side, and the detector comprises
a first pressure sensitive switch under the first flexible side and
a second pressure sensitive switch under the second flexible side.
The detector generates a first signal when the user squeezes the
first flexible side, and generates a second signal when the user
squeezes the second flexible side. According to this aspect of the
invention, in response to the first signal, the controller is
configured to select a second operational state following a first
operational state in a predetermined sequence of a plurality of
operational states; and, in response to the second signal, is
configured to select another operational state in the sequence.
Usually, but not always, the "another" operational state will be a
subsequent operational state following the second operational state
in the sequence.
In accordance with another aspect of this invention, the housing
includes a motion sensor, and the detector generates the signal
when the housing is moved by the user. According to a further
aspect of this invention, the detector further includes a timer,
and wherein the detector generates the signal when the housing is
stationary for a predetermined time. According to yet a further
aspect of this invention, the wireless telephone includes an OR
gate receiving input from a microphone, a speaker, and the motion
sensor. The detector is connected to the OR gate such that the
detector does not sends the signal to the controller when there is
input from the microphone, speaker or motion detector for the
predetermined period of time. According to a further aspect of this
invention, the detector comprises a capacitance sensor enclosed in
the housing, wherein the capacitance sensor generates the signal
responsive to the user's grasp completing a circuit through the
capacitance sensor, and generates the signal responsive to the user
letting go of the housing.
According to another aspect of this invention, the housing includes
a light sensitive element, wherein the light sensitive element
generates a signal when the user's hand blocks the light sensor
from the ambient light and generates a signal when the user's hand
moves away from and uncovers the sensor.
According to an aspect of this invention, when the wireless
telephone is operating in an "alerting" state, the controller is
configured to change the alerting state to a "send" ("off hook")
state responsive to the signal from the detector. According to
another aspect of this invention, when the wireless telephone is
operating in a "send" state, the controller is configured to change
the "send" state to a "standby" ("on hook") state responsive to the
signal from the detector.
According to a further aspect of this invention, when the wireless
telephone is operating in a "standby" state, the controller is
configured to change the "standby" state to a "redial" state
responsive to the signal from the detector. In accordance with
still yet another aspect of this invention, when the wireless
telephone is operating in a "function" state, the controller is
configured to change the "function state" to a "standby" state
responsive to the signal from the detector. In accordance with
another aspect of this invention, when the wireless telephone is
operating in a "function" state, the controller is configured to
change to a positive state responsive to a first signal and a
negative state responsive to a second signal.
According to an aspect of this invention, a wireless telephone is
provided that operates in a wireless telephone network that sends
an alerting signal to alert the wireless telephone of an incoming
call and communicates with the wireless telephone by a full duplex
radio connection. The wireless telephone includes a control for
changing a state from a "standby" state to an "active" state
responsive to the alerting signal and being picked up by the
user.
A method for operating a wireless telephone to answer an incoming
call from a wireless network in according with a further aspect of
this invention operates in a system wherein the wireless telephone
and the wireless network communicate by a full duplex radio
connection, and the wireless network sends an incoming call alert
signal to the wireless telephone prior to establishing the full
duplex connection. The method comprises receiving an incoming call
alert, detecting a user grasping the wireless telephone and the
wireless telephone establishing a full duplex connection with the
wireless network responsive to the call alert and the detected
grasp.
A further method for operating a wireless telephone to disconnect a
call between the wireless telephone and a wireless network
according to a further aspect of this invention operates in a
system wherein the wireless telephone and wireless network
communicate by a full duplex radio connection. The method according
to this aspect of the invention comprises establishing a full
duplex connection between the wireless telephone and the wireless
network, detecting a user grasping the wireless telephone, and
disconnecting the full duplex connection with the wireless network
responsive to the detected grasp.
BRIEF DESCRIPTION OF THE DRAWINGS
A more complete understanding of this invention may be obtained
from a consideration of the following detailed description in
conjunction with the drawings, in which:
FIG. 1 is a block diagram of a wireless telephone that is
responsive to a user's grasp according to an exemplary embodiment
of this invention;
FIG. 2 is an elevational view with parts broken away of a wireless
telephone illustrating a pressure sensitive switch in accordance
with one embodiment of this invention;
FIG. 3 is an elevational view with parts broken away of a wireless
telephone illustrating a capacitance sensitive switch in accordance
with another exemplary embodiment of this invention;
FIG. 4 is a further elevational view with parts broken away of a
wireless telephone illustrating a thermal sensitive switch in
accordance with a further exemplary embodiment of this
invention;
FIG. 5 is an elevational view with parts broken away of a wireless
telephone illustrating a motion sensitive switch according to yet a
further exemplary embodiment of this invention;
FIG. 6 is an elevational view with parts broken away of a wireless
telephone illustrating a light sensitive switch in accordance with
another exemplary embodiment of this invention;
FIG. 7 is an elevational view with parts broken away of a wireless
telephone illustrating two pressure sensitive switches, according
to a further exemplary embodiment of this invention;
FIG. 8 is a state diagram of the operational states of a wireless
telephone illustrating the state changes obtainable from an
exemplary method of this invention; and
FIG. 9 is a flow chart illustrating the operation of an exemplary
method according to this invention.
DETAILED DESCRIPTION
Because most people are used to the wireline telephone paradigm of
picking up the receiver to answer the telephone and of putting down
the telephone to hang up, the present invention discloses a variety
of switches that can change the state of a wireless telephone by
squeezing it, picking it up, covering a photocell, etc.,
generically referred to herein as "grasping" the telephone.
Further, the user can put the wireless telephone down and it
changes state ("hangs up"). This unique configuration of a wireless
telephone makes operating it, especially answering and hanging up,
as simple as a wireline telephone.
Turning to FIG. 1, a block diagram of an exemplary embodiment of a
wireless telephone made according to the invention is shown
generally at 10. The wireless telephone 10 includes a housing 12
supporting an antenna 13 on its exterior for sending and receiving
radio signals between itself and a wireless network. The antenna 13
is connected to a duplex filter 14, which enables a receiver 16 and
a transmitter 18 to receive and broadcast (respectively) on the
same antenna 13. The receiver 16 demodulates, demultiplexes and
decodes the radio signals into one or more channels. Such channels
include a control channel and a traffic channel. Speech on the
traffic channel is delivered to a speaker 20 (or data on the
traffic channel is delivered to another output device, such as a
fax or modem connector).
The receiver 16 delivers messages from the control channel to a
controller 22. The controller 22 controls and coordinates the
functioning of the wireless telephone 10 in respect to a wireless
network responsive to the control messages using programs and data
stored in a memory 24. The controller 22 operates in a plurality of
sequentially ordered states, in order to keep the required controls
to a minimum. Such operational states include, but are not limited
to, active (on a call), standby, function (menu), yes and no (for
use with the function key), alert (incoming call), dialing and
redialing.
The controller 22 controls the operation of the wireless station 10
responsive to input from a user interface 26. The user interface 26
includes a keypad 28 as a user-input device and a display 30 to
give the user information. Special purpose buttons SEND 32, END 34,
FUNCTION (sometimes called "MENU") 36 and ERASE 38 are typical
multifunction buttons that change the operational state of the
controller 22 of the wireless telephone 10 as known in the art and
are found on most wireless telephones. According to the prior art,
the SEND button 32 is pressed when wireless telephone is in an
alert state ("ringing" in wireline terminology) to cause the
controller 22 to complete a full duplex radio connection in the
active state. Further, the SEND button 32 is pressed in the dialing
state after a destination directory number is entered to change to
the active state to establish a full duplex radio connection and
connect to the destination telephone. The SEND button 32 is used in
some wireless telephones, when the controller 22 is in the standby
state, to cause the last directory number dialed to be redialed. It
is also used in menu functions to mean "YES".
The END button 34 is generally used when the controller 22 is in
the active (on a call) state, to disconnect the call (hang up the
phone), and is used in menu functions to mean "NO". The FUNCTION
button 36 causes the controller 22 to change to a menu input mode
from a standby mode, and vice versa. The ERASE button 38 usually
clears the last digit entered.
The controller 22 controls the operations of the transmitter 18 and
the receiver 16 over a plurality of control lines 40 and 42,
respectively, responsive to control messages and user input. A
microphone 44 receives speech signal input, converts the input into
analog electrical signals and delivers the analog electrical
signals to the transmitter 18. The transmitter 18 converts the
analog electrical signals into digital data, encodes the data with
error detection and correction information and multiplexes this
data with control messages from the controller 22. The transmitter
18 modulates this combined data stream and broadcasts the resultant
radio signals to the wireless network through the duplex filter 14
and the antenna 13.
A switch detector 46 is connected to a grasp-sensitive switch, as
will be explained further, below. The switch detector 46 provides a
signal to the controller 22 when one of the grasp switches detects
a user grasping or squeezing the housing of the wireless unit 10.
In accordance with another aspect of this invention, the switch
detector 46 may also provide a signal to the controller 22 when one
of the grasp switches detects a user letting go of, or putting down
the wireless telephone 10.
Advantageously, the switch detector 46 delivers its signal to an OR
gate 48. The signal from the switch detector 46 is OR'ed with any
signals on a line 50 to the speaker 20 and with any signals on a
line 52 from the microphone 44. In this manner, a signal line 54
provides a signal to the controller 22 when the user is speaking or
listening but not holding the housing.
Turning now to FIG. 2, a semi-cutaway front view of a wireless
telephone 200 according to one aspect of this invention is shown.
The wireless telephone 200 is configured with a flexible side 204
on one side of its housing 202. The flexible side 204 consists of
an outer membrane 206, a first plate 208 and a second plate 210.
When the user grasps and/or squeezes the housing 202, the first
plate 208 is moved into contact with the second plate 210. This
contact completes a circuit, which is detected by the switch
detector 46. In response, the switch detector 246 sends a signal to
the controller 22. The signal may be transitory or may be for the
duration of the user's grasp. If the signal is transitory, then
when the user lets go of the housing 202, and hence flexible side
204, another signal can be generated. If the signal is not
transitory, then the controller 22 may be configured to change the
operational state to the next sequential operational state. Of
course, other forms of pressure sensitive switches are known in the
art that can perform the same function. Then signals which broadly
may be considered indicative of the fact that a user has picked up
or set down the wireless telephone, are employed for control
sequencing purposes as well be discussed further, below.
Turning now to FIG. 3, a semi-cutaway front view of a wireless
telephone 300 according to another aspect of this invention is
shown. The wireless telephone 300 is configured with a capacitance
switch 304 on or embedded in the sides of the housing 302. The
capacitance switch 300 consists of a first plate 306 and a second
plate 308. In this exemplary embodiment, when the user grasps the
housing 302, the conductive nature of the human hand causes a
current to flow between the first plate 306 and the second plate
308. This completes a circuit, which is detected by the switch
detector 346. In response, the switch detector 346 sends a signal
to the controller 22. Again, the signal may be transitory or not,
as mentioned above, to achieve the same functions.
FIG. 4 illustrates a grasp detection switch that uses a thermal
sensor according to another aspect of this invention. The thermal
sensor includes a first thermal switch 406 and a second thermal
switch 408. When the user grasps the housing 402, the heat from the
user's hand is detected by at least one of the thermal switches 406
and 408 completing a circuit, thus causing the switch detector 446
to send a signal to the controller 22. Again, the signal may be
transitory or not, as mentioned above, to achieve the same
functions.
Turning now to FIG. 5, a semicutaway front view of a wireless
telephone 500 according to still another aspect of this invention
is shown. This wireless telephone 500 is configured with a motion
sensitive switch 504 inside of the housing 502. The motion
sensitive switch 504 sends a signal to the switch detector 546 when
it senses that the housing is being moved. The signal is
"debounced" (that is, changed from an unsteady state to a steady
state) either at the switch detector 546 or at the controller 22.
When the user picks up the wireless telephone of FIG. 5, the motion
sensitive switch 504 sends a signal to the switch detector 546,
which sends a signal to the controller 22. According to a further
aspect of this invention, the detector 546 further includes a
timer, and the switch detector 546 generates a signal when the
housing is stationary for a predetermined time.
The wireless telephone may include an OR gate 48 (FIG. 1) receiving
inputs from the microphone 20, the speaker 44 and the motion sensor
504. The switch detector 46 is connected to the OR gate such that
the signal from the detector 546 is not delivered to the controller
22 when there is input from the microphone 20, the speaker 44 or
the motion sensor 504 for the predetermined period of time, to
prevent, for example, a premature change in state from active to
standby if the wireless telephone 10 is put down for a short period
of time.
Turning now to FIG. 6, a semi-cutaway rear view of a wireless
telephone 600 according to another aspect of this invention is
shown. The wireless telephone 600 is configured with a light
sensitive switch 604, comprising a photocell in this exemplary
embodiment, on one side of the housing 602 and positioned to be
covered by the user's hand when the housing 602 is grasped. Thus,
when the user grasps the housing 602, the ambient light is cut off
from the photocell. This action breaks a circuit, which is detected
by the switch detector 646. In response, the switch detector 646
sends a signal to the controller 22. When the user puts the
wireless telephone 600 down, the photocell is uncovered and again
completes a circuit, which is detected by the switch detector 646.
Advantageously, the switch detector 646 may send a further signal
to controller 22 responsive thereto.
Turning now to FIG. 7, a semi-cutaway front view of a wireless
telephone 700 according to one aspect of this invention is shown.
The wireless telephone 700 is configured with two flexible sides
704, 706, on each side of the housing 702. The flexible sides 704,
706 each consists of an outer membrane 708, 710, a first plate 712,
714 and a second plate 716, 718. When the user grasps and/or
squeezes the housing 702, either or both of the flexible sides 704
and 706 cause their respective first plate 712, 714 to contact the
respective second plate 716, 718. This contact completes a circuit,
which is detected by the switch detector 746. In response, the
switch detector 746 sends a signal to the controller 22.
Alternatively, in accordance with another aspect of this invention,
the switch detector 746 generates a first signal when the user
squeezes the first flexible side 704 and second signal when the
user squeezes the second flexible side 706.
According to a further aspect of this exemplary embodiment, in
response to the first signal, the controller 22 is configured to
select a second operational state following a first operational
state in a predetermined sequence of a plurality of operational
states. In response to the second signal, the controller 22 is
configured to select another operational state in the sequence.
Usually, but not always the "another" operational state will be a
subsequent operational state following the second operational state
in the sequence. An AND gate 750 receives the signal from both of
the pressure sensitive switches 704, 706. The resulting output
signal from the AND gate 750 is useful, for example, when the
controller 22 is in the standby state. If both signals are detected
at the AND gate 750, then the switch detector 46 generates a
signal. This configuration ensures that certain changes in
operational state occur when both switches are closed for purposes
that will be discussed further, below.
Turning now to FIG. 8, a state diagram illustrating the sequential
relationships among certain of the operational states of the
controller 22, and hence the wireless telephone 10, are shown. When
the wireless telephone 10 is first turned on and registers with a
wireless network as is known in the art, the wireless telephone 10
is in a standby state 800. The next sequential state from the
standby state 800 is the redial state 802, as shown by a line 804.
Thus, when the wireless telephone 10 is in the standby state 800,
the user can grasp the housing and change the state to the redial
state 802. The next sequential state from the redial state 802 is
the active state 806. This change of state is contingent upon the
call being competed, so it is not operable by grasping the housing
of the wireless telephone 10, as indicated by a dashed line 808. If
the call is not completed, the user may change the state back to
the standby 800 by squeezing the telephone, as shown by a line
809.
Another possible change of state from the standby state 800 is the
alerting (ringing) state 810. This state is also not obtainable by
grasping the housing, as indicated by a dashed line 812. From the
alerting state 810, the user can change to the active state 806 by
grasping the housing of the wireless telephone 10, as indicated by
a line 813. In other words, the user can "answer the phone" by
grasping and/or squeezing the housing with one hand. In the active
state, the wireless telephone 10 is in full duplex radio
communication with the wireless network.
The next sequential operational state after the active state is the
standby state 800. This change of state is obtainable with the
embodiments of FIGS. 2 and 7 by grasping and/or squeezing the
housing of the wireless telephone 10, as illustrated by a line 814.
In other words, the user can "hang up the phone" with one hand by
squeezing it. With other embodiments, the user can move from the
active state 806 to the standby state 800 by setting the wireless
phone down for a predetermined period of time, or letting go of the
housing.
A further state is the function state 816, which is attained when
the user presses the FUNCTION key, as shown by a dashed line 815.
In this state, the user can 15 program the wireless telephone 10,
as is known in the art. Additionally, the user can answer "yes" or
"no" by squeezing one side or the other of the wireless telephone
in accordance with FIG. 6. From the function state 816, the next
sequential state is the standby state 800, as shown by a line 817.
The user can complete the programming function by grasping and/or
squeezing the housing of the wireless telephone 10.
Turning now to FIG. 9, processing according to an exemplary method
of this invention is shown. Processing starts in a box 900, where
the wireless telephone 10 is powered on. Processing continues to a
box 902, where the wireless telephone initializes, including
registering with the wireless network, as is known in the art. In
the box 904, the wireless telephone 10 is in the standby state 800
(FIG. 8), waiting for input. In a box 906, the wireless telephone
10 receives an alerting message from the wireless network, and then
processing moves to the box 908, where the wireless telephone moves
to the alerting state 810 (FIG. 8) responsive to the alerting
message. In a decision diamond 910, a determination is made whether
the user pressed the SEND key 32 (FIG. 1). The user may operate the
wireless telephone 10 in either the manner of the prior art. If the
user did not press the SEND key 32 in the decision diamond 910,
then processing proceeds to a decision diamond 912. In the decision
diamond 912, a determination is made whether the user has grasped,
picked up and/or squeezed the housing of the wireless telephone,
according to one of the aspects of this invention. If the user did
not, then processing moves to a box 914, where the display is set
to "Called" to indicate to the user that there was a call that was
not picked up. Processing returns to the standby state in the box
904.
If the switch detector sent a signal indicating that the user
squeezed the housing, or if the user pressed the SEND key 32 (FIG.
1), processing proceeds to a box 916, where a full duplex
connection to the wireless network is established, and the wireless
telephone 10 is in the active state 806 (FIG. 1). In the box 918,
there is a stable connection in the active state 806.
Processing continues to a decision diamond 920, where a
determination is made whether the user pressed the END key 34 (FIG.
1). If the user did not press the END key 34, then processing
proceeds to a decision diamond 922, where a determination is made
whether the user squeezed the housing again (or put the phone down
for a predetermined period of time). If the user did not, then
processing returns to the active state, in the box 918.
If, in the decision diamond 920 the user pressed the end button, or
in the decision diamond 922 the user squeezed the housing, then
processing proceeds to an action box 924, where the call is torn
down, and processing returns to the standby state in the box
904.
It will therefore be apparent that the invention simplifies the
operation of a wireless telephone. Not only can a user answer a
call and hang up with just one hand, a number of functions can be
carried out that normally require numerous buttons to be pressed.
As a result, a wireless telephone according to this invention works
in a similar manner to a wireline telephone, resulting in a more
universal understanding of control of the wireless telephone.
It is to be understood that the above-described embodiment is to
illustrate the principles of this invention, and that those skilled
in the art may devise many variations without departing from the
scope of the invention. It is, therefore, intended that such
variations be included within the scope of the appended claims.
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